Support base for load carrier



FIG. 1 is a front, top and right side perspective view of a support base for load carrier showing my new design;

FIG. 2 is a perspective view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a front plan view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a left side elevational view thereof; and,

FIG. 8 is a bottom plan view thereof.

The component shown with broken lines is not considered to be a part of the claimed design. 

The ornamental design for a support base for load carrier, as shown and described. 